Slow Network Performance With New Windows 7 Install- Maybe Driver?
Ihave Windows 7 x64 Ultimate (retail) on an ASUS AMD motherboard (AN8-SLI) with nForce4 Gb Ethernet built-in - aclean Windows 7 load (not an upgrade). I am using Samba file shares on Ubuntu and Buffalo HomeStation, and file transfer is now 1/10 the speed when this PC was running XP - getting around 350KB/s. At first I thought it might be a problem with SMB and non-Windows servers, so I tried the same transfer over http: I setup the Windows 7 PC as a web server and used a browser to download the file on the Ubuntu box - some improvement -around 450KB/s, but I attribute that to the protocol change and nowheres near what is expected (shouldget up to3MB/s). Networking in Task Manager shows 1Gbps link with utilitzation around 1% while copying over http and 0.5% using a file share.I am using the latest NVidia drivers (15.51) for the nForce ethernet, but the speed option under Advanced only shows up to 100Mb full duplex, so I left it at autonegotiate. The switch indicates it's running at 1Gbps and so does the Task Manager, but it's behaving like it only running at 100Mbps - I'm beginning to suspect the driver is guilty, especially with the 10x loss of speed. I used to copy 25GB in 2 hours, now ittakes around 20 hours.
November 5th, 2009 7:28pm

I've done more testing and not sure what the cause is, but large network file transfers (1 GB+) are not viable like this. I tried the following test on the same home network with an XP laptop and only 100Mbps network speed: Copying 1GB file from a Samba file share to the local C drive took 140 seconds (little over 2 min).Computing the average speed:7.8 MB/sec. Copying the same file from the same server to the Win7 PC with a1GB Eth connection - well, I canceled after 526 MB copied because it was over an hour. Win7 reported the speed at 156 KB/sec (in the other direction it was 350 KB/sec). Please help - I'm using sneakernet for now...
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November 6th, 2009 2:35am

Windows Vista and 7 have stronger security mesures than XP does. I don't think you waited the whole 20hours the transmition indicator stated to see if the files actualy coppied. Using samba on MAC0SX 10.5yeld similar results untill I resolved authentication issues.Before that I tested a small file that took much longer than it supose to transfer only to find out the file was corrupted.I would google how to authenticate windows visa or 7 client in samba in linux. It worked for me in mac.
November 6th, 2009 6:01am

Hi, You need to make sure that the router is fully compatible with Windows 7 first. Then, I suggest you refer to the following link to perform the troubleshooting suggestions manually. http://support.microsoft.com/default.aspx/kb/932170/en-us Good luck! Arthur Li - MSFT
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November 6th, 2009 7:49am

Thanks, Arthur - it seems that the router/switch compatibility is the issue. I checked with NVIDIA and my drivers are the ones that come out-of-the-box with Win7. I moved my Ethernet wire from the 1Gb Trendnet switch (TEW-672GR) to the good-ole Linksys 100Mb WRTP54G, and copied the file again. This time the network monitor peaked at 100% (yea!) and the file copy in Win7 reported 11.2MB/sec. I am now able to copy 1GB in less than a minute. I will check with Trendnet and see if there's a firmware upgrade. It is not a driver issue - thanks again.
November 14th, 2009 10:04pm

Hi,Sorry guys, I just could't reply to that :D " You need to make sure that the router is fully compatible with Windows 7 first."Router is not the same as switch by the way.First of all, routers are designed so that they dont know what OS client computers are runing nor they would need to care about it. Second, operating system itself has no direct communication with the router - driver software does it. Third, if something is slower than usually on a different machine, in most cases there can be a problem with network card drivers, client network card compatibility or some network traffic filters might be enabled on the OS, or sometimes the problem might be in the switch.I JUST CANT BELIEVE HOW MANY NOOBS ARE OUT THERE WORKING AS MODERATORS AND OTHER "IT Professionals" EVEN IF THEY DONT KNOW A DAMN ____ ABOUT THE BASICS OF SUCH A TECHNOLOGIESRegards to all the readers and be carefull inselecting the answers,MK
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November 18th, 2009 5:21pm

You didn't even mention that the link of the "Moderator" doesn't even pertain to the issue stated! I found this thread searching for a very similar problem since I removed XP and installed W7 on my laptop. I clicked the link mentioned above by the "Moderator" and it tells me "This article applies to a different version of Windows than the one you are using. Content in this article may not be relevant to you." Obviously NOT going to work for this problem.
November 23rd, 2009 10:19pm

I'm like thousands of other users who have asked the same question re win 7 and slow internet, the internet forums are full with people asking the same question and getting fobbed off with Microsoft blaming all types of other things, but it couldn't be an issue with win 7 could it, Microsoft couldn't care less, I have a brand new Dell laptop, win 7 64bit pro and a very slow internet access, my xp pro laptop works fine and quickly, I'm so dispondent with win 7 I nearly sent the laptop back, someone even suggested reloading xp on... it's new!!! I already have a laptop with xp on it ta.I've packed the laptop up and use my trusty xp one again, 500 on a new lappy that I cant use on the internet, brilliant.connection was so slow, sometimes to just load the Google search page took 10 minutes, it was quicker with bloody dial up! my xp laptop loads google in seconds, other times it would load fairly quickly but I also get 'internet explorer cant find the page', after refreshing a few times it finds it.have tried all the fixes that microsoft's so called 'experts' have suggested but to no avail, so dont be fobbed of with excuses, it's not anti virus/firewall/spyware etc that they tell you to turn off, it's lack of knowledge on the so called experts part, but most of all, it's Microsoft, I'm telling everyone I know who wants to run win 7, don't bother, it's ____ and so is the back up from Microsoft.Stick with xp until a proper fix is found for this common problem, messinguk
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November 23rd, 2009 11:45pm

With Windows vista and windows 7, some new features may cause this issue such as RDC and autotuning. you can try steps mentioned here if you face difficulty with windows 7 network slow.http://www.sysprobs.com/windows-7-network-slow
December 9th, 2009 3:05pm

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